Question

Use Java

Given an original string input, and two strings S and T, replace all occurrences of S in input with T.

Assumptions

• input, S and T are not null, S is not empty string

Examples

• input = "appledogapple", S = "apple", T = "cat", input becomes "catdogcat"
• input = "laicode", S = "code", T = "offer", input becomes "laioffer"

public class Solution {

public String replace(String input, String source, String target) {

// Write your solution here

}

}

Answer 1

SOLUTION:

import java.util.Scanner;

public class Solution {

public String replace(String input, String source, String target) {
  
//replaceAll will replace all the occurences with the matching string and return
return input.replaceAll(source,target);
// Write your solution here

}
public static void main(String[] args){
//create instance of the scanner
Scanner in=new Scanner(System.in);
//read intial input and source and replacing string target
String input=in.next();
String source=in.next();
String target=in.next();
//create instance of the class
Solution solution=new Solution();
//call the function replace and print data
System.out.println(solution.replace(input,source,target));
}

}

CODE IMAGE:

FOR input ->  input = "appledogapple", S = "apple", T = "cat", input becomes "catdogcat"

I had read the data from the user itself

FOR 2 nd Input :

input = "laicode", S = "code", T = "offer", input becomes "laioffer"